title: US citizens report slightly less sexual activity than in 2002.
authors.forename: Janice Hopkins
authors.initials: JH
authors.lastname: Tanne
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D012725:Sexual Behavior / Q000706:statistics & numerical data*; D014481:United States; D055815:Young Adult